sketchybar: 2.19.3 -> 2.19.4

pkgs/os-specific/darwin/sketchybar/default.nix

···
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "sketchybar";
-  version = "2.19.3";
+  version = "2.19.4";
 
   src = fetchFromGitHub {
     owner = "FelixKratz";
     repo = "SketchyBar";
     rev = "v${finalAttrs.version}";
-    hash = "sha256-QT926AnV9jLc1KvYks6ukIAcMbVHOupTJWQ6vBHpcxc=";
+    hash = "sha256-6MqTyCqFv5suQgQ5a9t1mDA2njjFFgk67Kp7xO5OXoA=";
   };
 
   buildInputs = [